Question

Refer to the American Journal of Science (Jan. 2005) study of the chemical makeup of buried tills (glacial drifts) in Wisconsin, Recall that till specimens were obtained from five different boreholes (labeled UMRB-1, UMRB-2, UMRB-3, SWRA, and SD), and the ratio of aluminum to beryllium was measured for each specimen. The data are reproduced in the accompanying table and saved in the TILLRATIO file. Conduct a nonparametric analysis of variance of the data, using a = .10. Interpret the results.